X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fpools%2Fselection-strategies%2Ffair-share-worker-choice-strategy.ts;h=cfda1b0b92b500c86fa0f61cdb49cb0f90c10370;hb=7c7bb28936c5de8829dba0794760498077d3ea90;hp=52b25fb947cd38c08c024ab5c816b90f5adeae0a;hpb=5df69fabd77b3ec4137a6382e2d84791bf0fe85d;p=poolifier.git

diff --git a/src/pools/selection-strategies/fair-share-worker-choice-strategy.ts b/src/pools/selection-strategies/fair-share-worker-choice-strategy.ts
index 52b25fb9..cfda1b0b 100644
--- a/src/pools/selection-strategies/fair-share-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/fair-share-worker-choice-strategy.ts
@@ -1,11 +1,16 @@
-import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
+import {
+  DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+  DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
+} from '../../utils'
 import type { IPool } from '../pool'
 import type { IWorker } from '../worker'
 import { AbstractWorkerChoiceStrategy } from './abstract-worker-choice-strategy'
-import type {
-  IWorkerChoiceStrategy,
-  TaskStatisticsRequirements,
-  WorkerChoiceStrategyOptions
+import {
+  type IWorkerChoiceStrategy,
+  Measurements,
+  type StrategyPolicy,
+  type TaskStatisticsRequirements,
+  type WorkerChoiceStrategyOptions
 } from './selection-strategies-types'
 
 /**
@@ -13,8 +18,8 @@ import type {
  * Loosely modeled after the fair queueing algorithm: https://en.wikipedia.org/wiki/Fair_queuing.
  *
  * @typeParam Worker - Type of worker which manages the strategy.
- * @typeParam Data - Type of data sent to the worker. This can only be serializable data.
- * @typeParam Response - Type of execution response. This can only be serializable data.
+ * @typeParam Data - Type of data sent to the worker. This can only be structured-cloneable data.
+ * @typeParam Response - Type of execution response. This can only be structured-cloneable data.
  */
 export class FairShareWorkerChoiceStrategy<
     Worker extends IWorker,
@@ -23,6 +28,12 @@ export class FairShareWorkerChoiceStrategy<
   >
   extends AbstractWorkerChoiceStrategy<Worker, Data, Response>
   implements IWorkerChoiceStrategy {
+  /** @inheritDoc */
+  public readonly strategyPolicy: StrategyPolicy = {
+    dynamicWorkerUsage: false,
+    dynamicWorkerReady: true
+  }
+
   /** @inheritDoc */
   public readonly taskStatisticsRequirements: TaskStatisticsRequirements = {
     runTime: {
@@ -30,14 +41,10 @@ export class FairShareWorkerChoiceStrategy<
       average: true,
       median: false
     },
-    waitTime: {
-      aggregate: false,
-      average: false,
-      median: false
-    },
+    waitTime: DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
     elu: {
-      aggregate: false,
-      average: false,
+      aggregate: true,
+      average: true,
       median: false
     }
   }
@@ -69,16 +76,31 @@ export class FairShareWorkerChoiceStrategy<
   }
 
   /** @inheritDoc */
-  public choose (): number {
+  public choose (): number | undefined {
+    const chosenWorkerNodeKey = this.fairShareNextWorkerNodeKey()
+    this.assignChosenWorkerNodeKey(chosenWorkerNodeKey)
+    return this.nextWorkerNodeKey
+  }
+
+  /** @inheritDoc */
+  public remove (workerNodeKey: number): boolean {
+    this.workersVirtualTaskEndTimestamp.splice(workerNodeKey, 1)
+    return true
+  }
+
+  private fairShareNextWorkerNodeKey (): number | undefined {
     let minWorkerVirtualTaskEndTimestamp = Infinity
-    let chosenWorkerNodeKey!: number
+    let chosenWorkerNodeKey: number | undefined
     for (const [workerNodeKey] of this.pool.workerNodes.entries()) {
       if (this.workersVirtualTaskEndTimestamp[workerNodeKey] == null) {
         this.computeWorkerVirtualTaskEndTimestamp(workerNodeKey)
       }
       const workerVirtualTaskEndTimestamp =
         this.workersVirtualTaskEndTimestamp[workerNodeKey]
-      if (workerVirtualTaskEndTimestamp < minWorkerVirtualTaskEndTimestamp) {
+      if (
+        this.isWorkerNodeEligible(workerNodeKey) &&
+        workerVirtualTaskEndTimestamp < minWorkerVirtualTaskEndTimestamp
+      ) {
         minWorkerVirtualTaskEndTimestamp = workerVirtualTaskEndTimestamp
         chosenWorkerNodeKey = workerNodeKey
       }
@@ -86,12 +108,6 @@ export class FairShareWorkerChoiceStrategy<
     return chosenWorkerNodeKey
   }
 
-  /** @inheritDoc */
-  public remove (workerNodeKey: number): boolean {
-    this.workersVirtualTaskEndTimestamp.splice(workerNodeKey, 1)
-    return true
-  }
-
   /**
    * Computes the worker node key virtual task end timestamp.
    *
@@ -109,9 +125,11 @@ export class FairShareWorkerChoiceStrategy<
     workerNodeKey: number,
     workerVirtualTaskStartTimestamp: number
   ): number {
-    return (
-      workerVirtualTaskStartTimestamp + this.getWorkerTaskRunTime(workerNodeKey)
-    )
+    const workerTaskRunTime =
+      this.opts.measurement === Measurements.elu
+        ? this.getWorkerTaskElu(workerNodeKey)
+        : this.getWorkerTaskRunTime(workerNodeKey)
+    return workerVirtualTaskStartTimestamp + workerTaskRunTime
   }
 
   private getWorkerVirtualTaskStartTimestamp (workerNodeKey: number): number {